Poly(hydroxamic acid) palladium catalyst for heck reactions and its application in the synthesis of Ozagrel
作者:Shaheen M. Sarkar、Md. Lutfor Rahman、Kwok Feng Chong、Mashitah Mohd Yusoff
DOI:10.1016/j.jcat.2017.03.023
日期:2017.6
Bio-waste corn-cob cellulose supported poly(hydroxamic acid) palladium complex was synthesized and it is characterized using some different techniques such as FTIR, FESEM, HRTEM, EDX, XPS, UV–vis, TGA and ICP-AES analyses. The cellulose supported heterogeneous palladium complex showed high stability and catalytic activity toward Mizoroki-Heck reaction of aryl/heteroaryl halides and arenediazonium tetrafluoroborate
合成了生物废物玉米芯纤维素负载的聚(异羟肟酸)钯复合物,并使用一些不同的技术对其进行了表征,例如FTIR,FESEM,HRTEM,EDX,XPS,UV-vis,TGA和ICP-AES分析。纤维素负载的异种钯络合物对芳基/杂芳基卤化物和四氟硼酸芳族重氮鎓与各种烯烃的Mizoroki-Heck反应表现出高稳定性和催化活性,从而以高达97%的收率得到相应的偶联产物。钯配合物还用于Ozagrel血栓烷A2合成酶抑制剂Ozagrel的合成,具有优异的收率。通过简单的过滤将配合物从反应混合物中分离出来,并重复使用多达7次,而不会显着降低其催化性能。